问题
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2/3,1/4,2/5,(),2/7,1/16, A.1/5;B.1/17;c.1/22;d.
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2/3,1/4,2/5,(),2/7,1/16, A.1/5;B.1/17;C.1/22; D
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2/3,3/5,5/8,9/13,() A.2/3 B.5/7 C.16/21 D.17/22
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阅读下列FORTRANN77程序:INTEGERB(4,5)DATAB/11,20,15,1,9,12,18,2,6,8,*10,3,22,15,21,3,17,9,3
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2/3,3/5,5/8,9/13,()。 A.2/3B.5/7C.16/21D.17/22
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计算.能简算的要简算,并写出简算过程.(1)(0.12+0.22+0.32+0.42)2÷(0.13+0.23+0.33+0.43)(2)3.97÷7+17×4.03-